Grindstone Running Festival by Utmb

Verona, United States • 18-21 Sep 2025

The Grindstone Running Festival by UTMB is a premier trail running event held in Natural Chimneys Park, Virginia, just west of the Shenandoah Valley. Set amid the George Washington and Jefferson National Forests, the festival offers four challenging race distances: 100 miles, 100 kilometers, 50 kilometers, and 21 kilometers. Runners experience demanding, technical terrain featuring high elevation gains, ridges, peaks, and valleys, all framed by stunning fall foliage and mountain views. This East Coast race is a dual qualifier for the UTMB World Series Finals and the Western States Endurance Run, providing a unique opportunity to earn qualification points while enjoying a scenic and gritty trail adventure. Visit the organization's website for the most recent information.

Race information

UTMB 20K UTMB 50K UTMB 100K UTMB 100M
160 km
6400 m+
100m
100 km
3350 m+
100k
50 km
1550 m+
50k
21 km
500 m+
21k
Visit the organization's website for the most recent information.
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